Great Britain, Elizabeth II (1952-present): 5 Pounds 2017 Gold Proof Coin PCGS PR70DCAM "The Centenary of the House of Windsor" Celebrating the Centenary of Windsor. It has produced four Monarchs who have reigned over Britain and the Commonwealth for 100 years. Come with Box and Papers. FIRST STRIKE, Extremely Collectable. Low Certificate Number (043 of 750). ONLY ONE KNOWN IN THE MARKET SLABBED WITH THE MAXIMUM GRADE AVAILABLE